Dumb question: is this something the dealer can do?
What did the Mode 6 misfire data show?Bad injector would cause cat issues for sure, I know they had issues with cats on the early 3.5's. I have two customers that both have F 150's with cat issues. We clear them and they come back, they know what needs to be done, just dont feel like spending the money. the 11 has close to 300,000 on it, and his kids is pushing 180,000 last time it was in for something. I replaced all his dad's about three years ago, which fixed that issue, but the cats are still throwing the efich code. My Sport definately has a injector issue, but it wont throw a miss code. I put the scanner on it this week and it wont even show a miss even thought it's obviously missing, go figure.